Dishwashing machine



Pt- 1932- J. E. ELKINGTON'. 1,878,685

DISHWASHING MACHINE iled May 27. 1930 BEBE w Hl1lllllillillllmmmmumnumlI N V EN TOR. Jami; .zmvg roA/ Patented Sept. 20, "1932 nrsnwasnrnemachine Application; and may at,

This invention relates to dish ,washing machines, injwhich dishes orother articles may .be cleanse by mechanical application of a cleansinguid.

it is an object of the invention to' construct a water sprayer for adishwashing machine in such a manner that the cleansing fluid will becirculated fromthe receptacle of the dish washing machine to a nozzle tobe discharged, 143 under pressure, upon the dishes or other articles ina wide, steady stream, dishes or articles are thereby efiectivelycleanedin a short time. i

Another objectof the invention is to pro: vide a housing on a, side wallof the receptacle of a dish washing machine, which housing has an inletat the bottom of the receptacle and an outlet nozzle at the upper endthereof, to discharge the cleansing fluid into the interior oi thereceptacle, the said fluid being recirculated from the receptacle by animpeller-in the said housing inlet; means being provided on the outsideof said receptacle wall to drive the said impeller; and means ofconnection being arranged between the housing and the driving means insuch mam ner as to securely attach receptacle wall.

- Other objects and advantages are to pro vide a dish washingmachinethat will be superior in point of simplicity, inexpensiveness ofconstruction, positiveness of operation, and

facility and convenience in use and general eficiency.

In this specfieation and the annexeddrawing, the invention isillustrated in the form considered to be the best, but it is to beunderstood that the invention is not limited to such form, because itmay be embodied in other forms; and it is also to be understood that inand by the claims following the description, it is desired to cover theinvention in whatsoever form it may be embodied.

The invention is clearly illustrated in the accompanying drawingwherein,

, Fig. 1 is a vertical sectional view of an endof the dish'washingmachine, showing lthesprayer constructed in accordance with all * fmi'nvs t {j Fi'g.-2 is a vertical sectional view of t so that the both tothe said ieso. Serial 150.45%,158.

sprayer in the dish washing. machine, showing another form of mountingof the sprayer housing; and

Fig. 3 is a front view of'the sprayer on the side wall oi a dish washingmachine.

In carrying out my invention, 1- make use of a receptacle 6 of a dishwashingmachine, in which dishes or other articles tobe washed are held.Adjacent a vertical side wall 7 of the receptacle 6 is disposed acombined pump and sprayer housing 8. The lower end of the housing 8adjacent the bottom 9 of the receptacle 6is formed into a pump housing11, the inlet '12 of which extends at right angles to the side wal1 ,7.From the pump housing 11 the housing 8 extends upwardly the width offorming a dischargechamber, which is gradually increased toward the perend thereof, as shown in Fig. 3.

up- The front and rear walls 10 oi -the housing 8 are parallel with eachother and with the side wall 7.

The upper end of the housing 8 is curved toward the interiorof thereceptacle 6 and is gradually reduced in height, to form an elongated,tapering nozzle 13, discharging downwardly and into the interior of theing the cleansing flui other articles in the machine. In the inlet 12 isdisposed receptacle 6, directan impeller 14. I

substantially diagonally 1' d onto the dishes or of a pump, mounted onthe end of a drive shaft 16, which extends thru the side wall 7 and isconnected whereby it is rotated to drive the impeller 14. The motor 17is outside of the side wall 7. a The housing 8 and the motor 17 aremounted, on the side wall 7 e by common to both, which do not includeany screws, bolts or other similar fastening means. From the housing 8exteriorly threaded member 18' which snugly fits in an aperture 19 insaid side wall 7 This member 18 may be anintegral part of the housing 8,as in threadedly secured intothe rear wall 10 of the housing 8, as at 21in Fig. 2.

A bracket 22- on which the. motor 17 is mounted in the usual manner, hasan interprotrudes an Fig. 1, or it may be means of connections nallythreaded base 23 which is screwed upon the external thread of the member18 or 21. ,It is to be noted that the base 23 bears tightly against theouter face of the wall 7, and it urges therear wall of the housing 8into tight contact with the inner face of said .wall 7. In this mannerthe housing 8 and the motor 17 are secured on each other and are alsosecurely mounted on the wall 7 therebetween, without the use of screws,

bolts, or rivets and the like. The afore-described mounting arrangementalso greatlyfacilitates the removal of-the motor 17 and t 3. Ina dishwashing machine the com-' of the housing 8 from the receptacle 6.

The shaft 16 extends thru the member 18. In order to prevent theescapement of cleansing fluid past the shaft 16, a packing gland 24 issecured in the outer end of the member. 18 and of the member 21.

In operation the housing 8 is so disposed in said receptacle 6 that theinlet 12 is located below the fluid level in the receptacle 6. Therotation of the'impelle'r let pumps the fluid from the receptacle 6 andforces the 25 fluid upwardly and out thru the nozzle 13,

which latter discharges the fluid onto the dishes in the vreceptacle 6,in a wide, .continuous, steady stream. Thus the cleansing fluidcontained in the receptacle 6 is continuously recirculated and thedishes or other articles are washed thoroughly.

' Havin thus described this invention, what I c aim and desire to secureby Letters Patent is z 1. In a dish washing machine, a' receptacle tohold dishes to be washed therein, a combined pump and spray housingdisposed adjacent a wall of the receptacle, a rotaa diagonallydownwardly directed nozzle on the upper end of the housing; meansoutside of said wall of the receptacle to drive the said rotary pump;

.means of connection between the housing and the driving means,extending thru the said wall to mount both the housing and the drivingmeans on said .wall, said means of connection comprising a threadedmember extending from the housing and thru saidbeing threadedly securedon said member to wall, a bracket on the outside of the wall "ar againstthe outside face of said side wall to draw the housing against the inner7 the end ofsaid drivfluid from the receptacle housing; and a nozzle oninlet being mounted on ing shaft to pum into and thru sai thereby tosecure the housing adjacent the bottom of 'the receptacle; an impellerblade in said the other end of said housing to discharge the fluilddirected to the interior of said recepae e.

and a mountmg for said driving means detachably mounted on the portionof said element outside of said wall so as to draw sai 1i1 nozzleagainst the inner face of said wa v 4. Means of..connection for a nozzleand a pump driving means in a dish washing receptacle having an openingon a side thereof, comprising an element extending from the outside ofthe nozzle substantially at ump 1n the end of the housmg ad acent the 40Bottom of the receptacle,

right angles to thelatter and protruding through-said opening, theprotrudin portion of saidelement being-externally t readed, a driveshaft journaled in said element, a. pump'on the inner end of said shaft,a driving mechanism on the outer end of the shaft, and a support forsaid driving mechanism threadedly engaged with said pro-.

means in the intake to force

